HydroBASINS lev08 watershed · #7080825360
Bassin de Río San Pedro
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 8 administrative regions : Aguascalientes, Calvillo, El Llano, Jesús María, San Francisco de los Romo +3
Sub-basin area
1 714,7km²
Upstream area
7 269,8km²
Discharge
5,49m³/s
Mean elev.
1 951m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Chicalote2089 km²
- Bassin de Río San Pedro226 km²
8 dept-equivalent regions (GADM L2)
- AguascalientesAguascalientes · México800.9 km²46.8% of basin
- Jesús MaríaAguascalientes · México272.7 km²15.9% of basin
- 261.3 km²15.3% of basin
- 165.3 km²9.7% of basin
- 143.9 km²8.4% of basin
- 42.0 km²2.5% of basin
- San José de GraciaAguascalientes · México19.4 km²1.1% of basin
- San Francisco de los RomoAguascalientes · México4.8 km²0.3% of basin
4 intersecting protected areas
C.A.D.N.R. 001 Pabellón
IUCN VINatural Resources Protection Area
50.44 km² overlap
Natural Resources Protection Area
2.79 km² overlap
Voluntary Conservation Area
1.23 km² overlap
El Jagüey, Buenavista de Peñuelas
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.35 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 215 distinct species · 54 808 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Río San Pedro : 32 espèces reliées par 98 interactions GloBI sur 5 types (connectance 10.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
17,6°C
Annual rain
570mm
Moisture idx (CMI)
-0,66
Runoff
25mm/an
PET
1 701mm
AET
481mm
Mean slope
4,0°
Water table
446cm
Forest
20%
Crops
42%
Urban
12%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)